Saunders, now in charge of Wrexham, told LFC Magazine: "Robbie's done it in recent weeks and that will make life easier for him.
"He's been working hard for the side, he makes intelligent runs and if he keeps doing those things I've no doubt that he'll soon be banging them in on a regular basis for the Reds.
"He'll probably be aiming for around 20 this season and if he can reach double figures by Christmas he'll be well on his way."
The recently-appointed Wrexham manager is fully aware of the pressure that comes with the legendary number seven jersey at Anfield, having been allocated it himself when he was signed from Derby County in 1991.
"It was a similar situation for me when I signed," he added.
"I came with a big price-tag and, at times, the expectation did affect me. The fans are all excited and hoping you'll do great things.
"You are very aware of that and really wait it to happen. But that is part of life at a big club and you have to live with it.
"When I scored my first goal against QPR at Anfield I felt like somebody had lifted a piano off my back."